<!DOCTYPE html>
<html>

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Sugar</title>
  <style>
    img {
      width: 300px;
    }

    .style01 {
      filter: blur(15px);
    }

    .style02 {
      filter: grayscale(1);
    }
  </style>
</head>

<body class="style02">
  <div>
    <h2>原图</h2>
    <img class="style00" src="./images/banner.png" alt="">
  </div>
  <div>
    <h2>模糊效果</h2>
    <img class="style01" src="./images/banner.png" alt="">
  </div>
  <div>
    <h2>灰度效果</h2>
    <img class="style02" src="./images/banner.png" alt="">
  </div>
</body>

</html>